Results 51 to 60 of about 2,066 (182)
CFD CODE – A USEFUL TOOL FOR THE TURBOMACHINERY DESIGNER
The presentation of CFX-TASC flow code possibilities for the turbomachinery design is the main aim of this study. In the first part of the work the compressor redesign process is presented.
RYSZARD CHODKIEWICZ +3 more
doaj
Low Reynolds Number Flow in a Packed Bed of Rotated Bars
Research Article: This study examines gas flow in a modular packed‐bed reactor with square bars arranged in rotated layers, creating complex void spaces. Using particle image velocimetry, measurements were taken at Reynolds numbers of 100 and 200. These results validated two particle‐resolved numerical simulations employing boundary‐conforming meshing ...
Wojciech Sadowski +7 more
wiley +1 more source
The paper presents the application of a compliant foil bearing for estimation of the thrust force in a single stage radial blower under operational conditions. The bump foil of the thrust bearing behaves as a nonlinear spring. The knowledge of the spring
Łagodzinski Jakub +2 more
doaj +1 more source
A high‐performance moisture‐enabled electricity generation (MEG) device with amino‐functionalized carbon dots on flexible fabric via thermal crosslinking is presented. The thermal crosslinking strategy enhances adhesion, removes inert groups, and suppresses carbon dots migration, boosting voltage (0.90 V vs. 0.56 V) and stability over 120 h.
Yi Li +9 more
wiley +1 more source
Numerical Investigation of Transonic Axial Compressor Rotor With Leading‐Edge Tubercles
Amplitude, wavelength, and span‐wise location of the leading‐edge tubercles on a transonic NASA Rotor 37 compressor are numerically optimized. An increase in efficiency by 0.52% compared to the corresponding baseline rotor is observed. The location of the shockwave moves downstream of the rotor with 1.91% higher pressure.
Muhammad Hamza +6 more
wiley +1 more source
From the reviews, a new concept of a low‐speed centrifugal pump (LSCP) driven by a vertical ultra‐low‐head hydro turbine (VULHT) was designed and tested on simulation and physical setup. It was performed with a 1.8 m delivery head, concluding as inefficient. For ultra‐low‐head conditions, different than centrifugal action is recommended.
Raj Kumar Chaulagain +4 more
wiley +1 more source
Numerical Investigations of the Savonius Turbine with Deformable Blades
Savonius wind turbines are characterized by various advantages such as simple design, independence of wind direction, and low noise emission, but they suffer from low efficiency. Numerous investigations were carried out to face this problem.
Krzysztof Sobczak +3 more
doaj +1 more source
Energy Storage System in Microgrids: Challenges and Opportunities
Hybrid integration of multiple Energy Storage Systems (ESSs) within renewable‐powered microgrids enhances reliability, flexibility, and economic sustainability. Lithium‐ion batteries, flow batteries, hydrogen storage, and thermal systems complement each other through coordinated control via Energy Management Systems.
Mohamed G. Moh Almihat, Josiah L. Munda
wiley +1 more source
A renewable‐powered offshore fast‐charging station, featuring offshore wind turbines, liquid carbon dioxide (CO2) energy storage, and a fast charger is studied. The results show that the overall energy efficiency of the offshore station with storage is 24.09%.
Nurettin Sezer, Sertac Bayhan
wiley +1 more source
ABSTRACT Nonlinear mechanical vibrations under harmonic forcing can be well approximated by Fourier series. For a finite number of harmonics, the error is minimized over one period of vibration. This technique, known as multiharmonic balance method (MHBM), is today widely used in academics as well as industrial applications, e.g., for friction‐damped ...
Sebastian Tatzko +2 more
wiley +1 more source

